Which cryptocurrencies can be mined?

A cryptocurrency can be mined only if its network uses proof of work. Not every cryptocurrency is mineable.

Quick answer : Mining depends on a network’s algorithm; a SHA-256 Bitcoin machine cannot automatically mine another coin.

Mining or staking?

Proof of work uses computation to propose and secure blocks. Proof of stake selects validators under staking and consensus rules; it is not ASIC mining. Algorithms also differ between networks, so hardware and software must match.

Bitcoin uses SHA-256 proof of work
Each network sets its own rules and algorithm
Check the coins listed in the actual offer

Check what a service actually offers

Some proof-of-work networks use ASICs; others rely more on GPUs or different mechanisms. Whether a coin is available on a platform depends on its listed offer and terms. Do not assume a service supports a coin just because it can be mined in theory.

Also see : Bitcoin, Mining, FAQ, Open help centre.

Protocol source: official Bitcoin Developer Guide: Bitcoin Developer Guide — Block Chain

Remember: Mining depends on a network’s algorithm; a SHA-256 Bitcoin machine cannot automatically mine another coin.